Consumer Theory Provides the Foundation for Understanding Demand Curves Because

Multiple Choice

Consumer theory provides the foundation for understanding demand curves because

A) each point on a demand curve represents an optimal choice point.
B) consumers purchase more inferior goods than normal goods.
C) increases in income cause the budget constraint to rotate inward along one axis, which changes the consumer's purchases.
D) increases in income cause the budget constraint to rotate outward along one axis, which changes the consumer's purchases.